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Chef Rich McGeown prepares to cook the world's first lab-grown beef burger during a launch event in west London, August 5, 2013. The in-vitro burger, cultured from cattle stem cells, the first example of what its creator says could provide an answer to global food shortages and help combat climate change, was fried in a pan and tasted by two volunteers. The burger is the result of years of research by Dutch scientist Mark Post, a vascular biologist at the University of Maastricht, who is working to show how meat grown in petri dishes might one day be a true alternative to meat from livestock.The meat in the burger has been made by knitting together around 20,000 strands of protein that has been cultured from cattle stem cells in Post's lab. REUTERS/Toby Melville

A new Cultured Beef Burger made from cultured beef grown in a laboratory from stem cells of cattle, is held by the man who developed the burger, Professor Mark Post of Netherland's Maastricht University, during a the world's first public tasting event for the food product in London, Monday Aug. 5, 2013. The Cultured Beef could help solve the coming food crisis and combat climate change according to the producers of the burger which cost some 250,000 euros (US dlrs 332,000) to produce. (AP Photo / David Parry, PA) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

A woman looks through her window in Mbare, Harare, Monday, August, 5, 2013. Zimbabwean President Robert Mugabe, 89, won another mandate to rule the country for the next five years after receiving more than 60 percent of the vote beating his main challenger Morgan Tsvangirai who has declared the election null and void and vowed to fight the outcome in courts.(AP Photo/Tsvangirayi Mukwazhi)

Professor Mark Post shows the world's first lab-grown beef burger during a launch event in west London August 5, 2013. The in-vitro burger, cultured from cattle stem cells, the first example of what its creator says could provide an answer to global food shortages and help combat climate change, was fried in a pan and tasted by two volunteers. The burger is the result of years of research by Post, a vascular biologist at the University of Maastricht, who is working to show how meat grown in petri dishes might one day be a true alternative to meat from livestock.The meat in the burger has been made by knitting together around 20,000 strands of protein that has been cultured from cattle stem cells in Post's lab. REUTERS/David Parry/pool

A protester sits in front of Turkish soldiers who prevented him from marching to a courthouse in Silivri, where a hearing for people charged with attempting to overthrow Prime Minister Tayyip Erdogan's Islamist-rooted government is due to take place, August 5, 2013. REUTERS/Osman Orsal

A protester sits in front of Turkish soldiers who prevented him from marching to a courthouse in Silivri, where a hearing for people charged with attempting to overthrow Prime Minister Tayyip Erdogan's Islamist-rooted government is due to take place, August 5, 2013. REUTERS/Osman Orsal

FILE - This June 23, 2011, booking photo provided by the U.S. Marshals Service shows James "Whitey" Bulger, who fled Boston in 1994 and wasn't captured until 2011 in Santa Monica, Calif., after 16 years on the run. Prosecutors and defense attorneys are expected to present lengthy closing arguments to jurors as they lay out their cases in the racketeering trial of reputed gangster James "Whitey" Bulger on Monday, Aug. 5, 2013. (AP Photo/ U.S. Marshals Service, File)

Two protesters sit in front of Turkish soldiers who prevented them from marching to a courthouse in Silivri, where a hearing on people charged with attempting to overthrow Prime Minister Tayyip Erdogan's Islamist-rooted government is due to take place, August 5, 2013. REUTERS/Murad Sezer

Two protesters sit in front of Turkish soldiers who prevented them from marching to a courthouse in Silivri, where a hearing on people charged with attempting to overthrow Prime Minister Tayyip Erdogan's Islamist-rooted government is due to take place, August 5, 2013. REUTERS/Murad Sezer

Iran's new President Hasan Rouhani delivers a speech after his swearing-in at the parliament in Tehran, Iran, Sunday, Aug. 4, 2013. Rouhani replaced Mahmoud Ahmadinejad, who was in power since 2005. The president on Sunday called on the West to abandon the "language of sanctions" in dealing with his country over its contentious nuclear program, hoping to ease the economic pressures now grinding its people. (AP Photo/Ebrahim Noroozi)

Two protesters sit in front of Turkish soldiers who prevented them from marching to a courthouse in Silivri, where a hearing on people charged with attempting to overthrow Prime Minister Tayyip Erdogan's Islamist-rooted government is due to take place, August 5, 2013. REUTERS/Murad Sezer

Two protesters sit in front of Turkish soldiers who prevented them from marching to a courthouse in Silivri, where a hearing on people charged with attempting to overthrow Prime Minister Tayyip Erdogan's Islamist-rooted government is due to take place, August 5, 2013. REUTERS/Murad Sezer

Two protesters sit in front of Turkish soldiers who prevented them from marching to a courthouse in Silivri, where a hearing on people charged with attempting to overthrow Prime Minister Tayyip Erdogan's Islamist-rooted government is due to take place, August 5, 2013. REUTERS/Murad Sezer

Mustafa, Balci works to repair a table damaged at their stand along the Venice, Calif., beach boardwalk Sunday Aug. 4, 2013 near where a Saturday incident involving a driver who accelerated through a crowd of beachgoers, hitting one person after another as bystanders tried desperately to get out of the way. The hit-and-run killed an Italian woman on her honeymoon and hurt 11 others. (AP Photo/Tami Abdollah)

Mustafa, left, and his wife, Yesim Balci pose at their stand along the Venice, Calif., beach boardwalk Sunday Aug. 4, 2013 near where a Saturday incident involving a driver who accelerated through a crowd of beachgoers, hitting one person after another as bystanders tried desperately to get out of the way. The hit-and-run killed an Italian woman on her honeymoon and hurt 11 others. Yesim shows her injured right leg where she was struck by the driver. Theirs was the first stand hit. (AP Photo/Tami Abdollah)

In this Thursday, June 13, 2013 photo, controversial Buddhist monk Wirathu, center, who is accused of instigating sectarian violence between Buddhists and Muslims through his sermons, performs Buddhist rituals during an assembly of Myanmar’s powerful Buddhist clergy in Hmawbi, outskirts of Yangon, Myanmar. Wirathu is a charismatic speaker and supporter of the fundamentalist 969 movement. His following is growing as he crisscrosses the country calling for boycotts of Muslim-owned shops and a ban on marriages between Buddhist women and Muslim men, and warning that a higher birthrate could one day bring Muslims from 4 percent of the population to a majority. (AP Photo/Gemunu Amarasinghe)

File- This Jan. 14, 1959 file photo shows Art Donovan, defensive tackle for the Baltimore Colts. Donovan, the Hall of Fame defensive lineman who spent much of his 12-year career with the Baltimore Colts, has dead. He was 89. Donovan died Sunday Aug. 4, 2013 at 7:20 p.m. at Stella Maris Hospice in Baltimore, according to Kevin Byrne, senior vice president of the Baltimore Ravens. Back in the day when NFL players made little money, the 6-foot-3, 265-pound Donovan played for the love of the game and the thrill of winning. He helped the Colts win championships in 1958 and 1959. (AP Photo/File)

File- This Dec. 28, 2008 file photo shows Hall of Fame member and former Baltimore Colts player Art Donovan smiling during a half time ceremony commemorating the 50th anniversary of the Colts and New York Giants World Championship Game, during halftime of a football game in Baltimore. Donovan, the Hall of Fame defensive lineman who spent much of his 12-year career with the Baltimore Colts, has died. He was 89. Donovan died Sunday Aug. 4, 2013 at 7:20 p.m. at Stella Maris Hospice in Baltimore, according to Kevin Byrne, senior vice president of the Baltimore Ravens. Back in the day when NFL players made little money, the 6-foot-3, 265-pound Donovan played for the love of the game and the thrill of winning. He helped the Colts win championships in 1958 and 1959. (AP Photo/Gail Burton, File)